Implement WallOps to send a warning to all operators.

group/group.go

@@ -480,6 +480,24 @@ func (g *Group) Shutdown(message string) {
 	})
 }
 
+type warner interface {
+	Warn(oponly bool, message string) error
+}
+
+func (g *Group) WallOps(message string) {
+	clients := g.GetClients(nil)
+	for _, c := range clients {
+		w, ok := c.(warner)
+		if !ok {
+			continue
+		}
+		err := w.Warn(true, message)
+		if err != nil {
+			log.Printf("WallOps: %v", err)
+		}
+	}
+}
+
 func FromJSTime(tm int64) time.Time {
 	if tm == 0 {
 		return time.Time{}

rtpconn/webclient.go

@@ -1393,6 +1393,20 @@ func clientWriter(conn *websocket.Conn, ch <-chan interface{}, done chan<- struc
 	}
 }
 
+func (c *webClient) Warn(oponly bool, message string) error {
+	if oponly && !c.permissions.Op {
+		return nil
+	}
+
+	return c.write(clientMessage{
+		Type: "usermessage",
+		Kind: "warning",
+		Dest: c.id,
+		Privileged: true,
+		Value: &message,
+	})
+}
+
 var ErrClientDead = errors.New("client is dead")
 
 func (c *webClient) action(m interface{}) error {